Cardiac Output

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Related to Cardiac Output: cardiac cycle, cardiac index, ejection fraction

cardiac output

[′kärd·ē‚ak ′au̇t‚pu̇t]
The total blood flow from the heart during a specified period of time.

Cardiac Output


the quantity of blood ejected by the heart in one minute. It is equal to the product obtained by multiplying the systolic, or stroke, volume of blood ejected by the heart with each contraction (systole) by the number of contractions per minute (pulse frequency).

References in periodicals archive ?
Cardiac index is calculated by measuring cardiac output using one of a number of possible methods and dividing the results by the individual's body surface area, a fairly complex process.
Hospitals are the main end-user of the non-invasive and minimally-invasive cardiac output monitoring devices.
The non-invasive cardiac output measuring device NICOM (Cheetah Medical, Portland, OR) was used in the experiment to measure cardiac output (Fig.
Estimates of the true accuracy and precision of PiCCO compared with other cardiac output devices are variable and currently unreliable.
Venous blood relapse is reduced during every birth pang in women in childbirth with RHD in supine posture and this makes it difficult to ensure the necessary increase of cardiac output, and, accordingly, adequate blood supply of uterus and oxygenation of foetus.
We haven't yet tested cardiac output with MRI during exercise prepregnancy, but if women at risk are tested before or during pregnancy and cardiac output is found to be lacking, this might be an indication to treat them more intensively, maybe with diuretics or other medications.
2] content completes the Fick equation, permitting an estimation of cardiac output.
The relationship between stretched myocardial muscle fibers and decreased cardiac output is also noted in Laplace's Theorem (Hudak & Gallo, 1973, p.
Statistics: Analysis of variance for repeated measurements was used to compare the effect of head-up tilt on heart rate, stroke volume, total peripheral resistance and cardiac output (stroke volume, total peripheral resistance and cardiac output are given as change percentages from supine values) between the groups.
The cardiac output is calculated from information such as pulse rate and pulsatility from the arterial pressure waveform after correction for body height and weight, age and gender.
In contrast to 18 normotensive men and women who were long-term practitioners of transcendental meditation, the 14 normotensive control subjects who were observed while resting with eyes-closed showed increased total peripheral resistance and decreased cardiac output and stroke volume, the researchers reported.